<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org">
    <body th:fragment="pageheader" >

        <div class="page-header">
            <h1><span th:text="${header}">Page Header</span> <small th:text="${subtext}">Subtext</small></h1>
        </div>

    </body>
</html>